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Warning

SingleStore 9.0 gives you the opportunity to preview, evaluate, and provide feedback on new and upcoming features prior to their general availability. In the interim, SingleStore 8.9 is recommended for production workloads, which can later be upgraded to SingleStore 9.0.

KEY_COLUMN_USAGE

This view contains information about columns that are part of unique keys (constraints) and displays one row per column in a unique constraint.

Column Name

Description

CONSTRAINT_CATALOG

This value is always def.

CONSTRAINT_SCHEMA

The name of the related schema (database) for a given key column.

CONSTRAINT_NAME

The name of the related constraint for a given key column.

TABLE_CATALOG

Value is always def.

TABLE_SCHEMA

The name of the related schema (database) for a given key column.

TABLE_NAME

The name of the related table for a given key column.

COLUMN_NAME

The name of a given key column.

ORDINAL_POSITION

The column’s position within the key. (These are numbered beginning with 1.)

POSITION_IN_UNIQUE_CONSTRAINT

Always NULL.

REFERENCED_TABLE_SCHEMA

Always NULL.

REFERENCED_TABLE_NAME

Always NULL.

REFERENCED_COLUMN_NAME

Always NULL.

Last modified: August 29, 2022

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Verification instructions

Note: You must install cosign to verify the authenticity of the SingleStore file.

Use the following steps to verify the authenticity of singlestoredb-server, singlestoredb-toolbox, singlestoredb-studio, and singlestore-client SingleStore files that have been downloaded.

You may perform the following steps on any computer that can run cosign, such as the main deployment host of the cluster.

  1. (Optional) Run the following command to view the associated signature files.

    curl undefined

  2. Download the signature file from the SingleStore release server.

    • Option 1: Click the Download Signature button next to the SingleStore file.

    • Option 2: Copy and paste the following URL into the address bar of your browser and save the signature file.

    • Option 3: Run the following command to download the signature file.

      curl -O undefined

  3. After the signature file has been downloaded, run the following command to verify the authenticity of the SingleStore file.

    echo -n undefined |
        cosign verify-blob --certificate-oidc-issuer https://oidc.eks.us-east-1.amazonaws.com/id/CCDCDBA1379A5596AB5B2E46DCA385BC \
          --certificate-identity https://kubernetes.io/namespaces/freya-production/serviceaccounts/job-worker \
          --bundle undefined \
          --new-bundle-format -
    Verified OK